Metering panel board



Feb.

G. W. BERTHOLD METERING PANEL BOARD Filed oct. so. 1922` 2 'Sheena-sheet 1 HG. l

f Patented 4Fel). -1 ,j 119257.

tiled January 2, 1917.

y .UNI-TED STATES PATENT OFFICE.

jGUs'rAvn w, BERTH'OLD, or CHICAGO, ILIrrNoIs METERING PANEL BOARD.

Application led O'ctober 30, 1922. Serial No."597,905.

My invention relates to improvements metering panel boards, and may be regarded particularly as effecting improvements 1ngiven number of circuits to be taken care of.

In oiiice buildings and the-like where the changing of tenants and rearrangement of oiices is of requent occurrence it is necessary `that the connections on a metering panel board maybe readily changed. Frequently it is desirable to connect a large number of load circuits across one meter-,I .to accomplish which means should be provided for on the'panel board. A further object therefore of my invention is to produce-an improved panel-board of 'compactand simple construction which has all the functions commonly. associated with boards of lthis character. I

Awfurther object of my invention is to produce a4 panel-board which is provided with' gutters topermi-t of running jumper wires to the fuse terminals, and in which.

such -gutters are positively closed to insure '2 -is a sectional View taken along line 2--2 of Fig. 1, showingparticularly the construction and relation ot the inner and outer socket" members for receiving fuse plugs of any desired construction. Fig. 3 is a perspective view of the block. forming the base of the inner socket member. bottom plan view vof the inner` socket member. Fig. 5 is a .perspective view of the shell forming part of both inner and outer socket members. Fig. 6 is a perspective view ofthe conducting plate for the socket members. Fig. 7 is a perspective view of l the lplate'which closes the gutters for receiv .ing the various socket terminal connections.

The exemplary embodiment of my invention which is `illustrated herein with considerable particularity .comprises a base board` 8 which may be o-any suitable insulating material. The present embodiment is designed for a three wire system of distribution in which 9 and 10 represent the positive vand negative terminals respectively, and 11 represents the common return or neutral terminal, but it should be understood that' any other satisfactory or suitable system of distribution may be employed.

The positive and negative terminals are connected through fuses 12, capable of with-- standing the total normal potential of that line, to the short bus-bars 13 and 14, respectively. Small fuses 15 of any suitable construction connect the various" circuit terminals 16 to the short-bus-bars. The neutral terminal 11 is electrically connected with the.

parallel bus bars'17 and -18 which are supported at opposite sides of the base board 8. A power switch 19 secured to the upper end' .of the board serves to connect the source of power to the bus-bars.

Mounted directly upon the long bus-bars 17 and 18 with their constituent elements in close abutment are two rows of socket members 20. Two parallel rows of socket mem bers 21 are arranged between-the socket members 20 so as to form a pair of side gutters 22 and 23, and a central gutter 24 of somewhat greater width. The corresponding socket members 20 and 21 are also alined transversely Aof the bus-bars. The gutters which :are designed to house the various lead wire connections to the socket members are provided with a plurality of holes 25 through whichsaid lead wires enter.

The holes 25 which are also' arranged in transverse and longitudinal alinement are each intended for use with the adjacent 'socket members.

Referringfto Fig. 2, the outer socket inember 20 in the preferred form' comprises a base. 26 of insulating material which is provided with a notch 27 on its under side adapted to' tit over the 4long bus bar 17.

The block or base 26 is secured to the base board 8 by means of a bolt 28 which is' surrounded-by a sleeve 29 which iits into, a countersunk bore 30 of thebase. 28 ext-ends through the Aboard 8 into a countersunk bore in the rear of the base and is secured therein by means of a nut 31. The

icc

bus bar 17 is secured to the socket member 20 by means ot a screw bolt 32.. The head of the screw bolt constitutes' the central terminal of the socket. The other terminal of the socket is in the form of a threaded 'annular sheet metal shell 33 which is held within the socket proper 34 into which the head of the screw bolt 32 projects. t c

In the particular construction shown herein, the shell 33' isheld within the socket 34 byineans of the bolt 32 forming the central 'terminal, and is insulated therefrom by an n the load circuit to the shell terminal.

insulating washer 35. The lower end of 'the shell 33 has an intiirned flange 36w'hich: tits against the bottom ot the socket. A con Y ducting member 37 extends into the shell 33 through a slot 38 andA lits between the in-V sulating washer 35 and the inside .ot the flange 36. The screw bolt passes through a metalli-c washer 39, the insulating washer 35, the conducting member 37, the shell 33, the block 26 and the bus bar 17, andV acts to hold them all in rigid relation. The conducting member 37 is provided with a large central aperture 40 whereby contact the central terminal 32 of the socket isrnot connected to a bus bar but to a second conducting plate 43 which extends 1nto the gutter 22 through an opening 44 in the block. Fastening means 45 similar to those employed in the member 20 are used to secure the lead wire running to the load to the conducting plate 43'. The conducting member 37 of the inner socket member 21 acts to secure one lead of the meter circuit to the shell terminal 33 by a fastening means 46 which comprises a plate 47 bent to form a clamp. This form of fastening means is here desirable so that a. plurality of wires may be conveniently clamped to the same conducting member. The innerfsocket'member 21 is oslightly greater width thi n vthe outer socket member v 20 and has aled e on both sides to accornmo`` e date the two fastening means.

. Iuthe present instance thev socket members have rectaugularbases and abutclose logether to form the side walls of the gutters. Each socket member isl made with tivo sockcon'struction. Although the socket members have beeudescrihed Vwith considerable .part1cular1ty,` members of. any Vother slutableconstruction may be used ifso desired.

ends of said gutters, and having side -ianges l 50. The socket members have notches 5l on their upper alined edges bordering the gutters', into which the {langes'50 lit., The plates engage the upper ends of the spacer sleeves 229 and are held in place by the bolts 28 which pass through the spacers and the blocks If desired a series ot'numbers may be placed on the plates in positions overlying the corresponding holes 25 in the board 8. 1

Referring to Fig. l, 52 represents an office building or any other building structure 'y where a plurality of separate load circuits are necessary. The load circuit wires,j 53, 53", 53c and 53d which supply the loads 54, 54", 54c and 54d with power fenter'fthe side gutters 22 and 23 through the holes 25 and aretherein secured in pairs to the adjacentconnected across one meter. The latter conm nection is obtained by running jumper wires 56 between the Wire securing means 46' to connect the shell contacts of the inner socket members 2l. Thus, the loads 54c and 54'd are connected to the same meter through the met-er circuit 57 c. The meters may be of the two wire -or three wire type, the latter type being shown as receiving the meter circuit wires 57 and 57a.

'It will 'be seen that by the construction 11.0

herein illustrated, the. amount of copper Whichis ordinarily required for metering panel boards is greatly reduced. The board is simple in construction and `cheap to produce. All connections on the hoard are com- U5 pletely covered bythe gutter plates so that a ldead front is obtained.-

-I desire to oint out that while the invention has been lereiu illustrated.l and described with considerableparticularity, I conteur-l. 120

p late' that various changes in form, construetion `and arrangement of paris may be made by there skilledm the art but without de- Vparting from the spirt'and scope of the in- I- claim as my invention: i,

1. A metering enel-board having incombination, an insu ating board, a air of busbars mounted thereon in par el relation,

Y vention as expressed in the appended claims. ets :torreceivmg fuse plugs'of any standard two rows'o structurally sepa-rate fuse plug u. 2

sockets mounted directly above "the two bars wit-hone terminal of each socket-electrically connected to its bar, and -two rows of structurall-y separate fuseplug Vsockets mounted on said insulating board parallel to and betweensaid'bus-bars oneterminal of each of said last mentioned sockets being connected l to a load circuit andi the other terminal being connected to a meter circuit.

2. A 'meteringpanel-board having, in cornl bination, an insulating board, a pair of busstructural] mounted bars mounted thereon in parallel relation,

two rows of structurally separate fuse plug r the wires leading to said sockets, and a plu-- l rality of plates for closing'said gutters.

3. A metering panel-board having in com- ;bination, lan insulating board, a positive and a negative bus-bar mounted thereon, a neutral bus-bar havingparallel branches mounted on said board, two rows of fuse plugl sockets lmounted directly over the two branches of said neutral bus-bar wit-hone terminal of. each -socket electrically connected to' said bar and with the other terminal of'each socket provided with a wire attaching device, two rowsk of fuse plug sockets forming a central gutter and mounted be-l .tween said irst mentioned rows, and cooperating therewith to form/the side walls of u' two side gutters, one terminal of each fuse plug socket in the two central rows having a wire Aattaching means. in a side gutter and 'the other terminal havlng a wlre-attaching means in fthecentral gutter, said means in the central gutterconnecting the meter circuit and said means in the side gutters connecti-ng the load'circuit to the board,

4.' A metering panel-board having in combination, an insulating board, two bus-bars of the same polaritymounted on said board,

, two outer rows of fuse plug sockets mounted directly over said bars with one terminal of each electrically connected toits bar and the other terminal of each `extending later-, ally from the inner side thereof, two inner n rows ofo fuse plug sockets` parallel to and-between said first mentioned sockets, each inner socket being paired withv an opposed inner socket 'in the other inner row and with "1an opposed outer socket in the `adjacent outer row, one ofthe terminals of each inner socket facing the-laterally extending terniinal' of said opposed outer socket and being attached .therewith to wires leading `to the ofleach innersocket facing `the correspond- 'in`g..terminal of said opposed inner socket,

iand being attached therewith to wires lead- 6a ing to the meter circuits. i

5. A metering panel-board having in combination an insulating board, a bus-bar mountedthereon, a, row of closely abutting fuse plug sockets mounted on said bar, one

lterminal of leach being electricall connected with said bar, a second row o fuse plug sockets parallel to said first mentioned row, with one terminal of veachfsocket and one terminal of l`each of said rst mentioned sockets being attached towires leading to a load circuit, and means for electricallyl connecting a pluralit of the terminals of said last mentioned soc ets, said means being-connected to a meter circuit wherebyA a plurality 8'0` of loads can be connected to one meter to register their combined power consumption.

6. A metering panel board having, in combination, an insulating board, positive and nega-tive bus bars mounted on said board, a v s neutral bus bar of forked construction Y mounted on said board, two rows of fuse plug sockets mounted over the branches of said neutral bus bar with one terminal of each socket electrically connected' thereto, 90 two rows of fuse plug sockets mounted on said board independentof bus bars between said Iii-st mentioned rowsl and cooperating therewlth to form two side gutters and a centra-l gutter, each of said socketsbeing provided with a -terminal connection extending into .a side gutter for attaching a load circuit, and each socket. of said last two rows being provided alsowith a terminal connection extending into said cent-ral gutter' for 100 7. A metering panel board having,in com- 105 bination, an insulating board, positive and negative bus bars mounted on said board,

` a neutral bus 'bar having parallel branches mounted on said board, load and meter circuits, two rows of fuse plug sockets -mounted \l10' i -directly on the branches of said neutral bus bar, with one terminalof each socket electrically connected thereto, and two spaced rows of fuse plug sockets mounted on said-` board between said first mentioned rows andv 11 5 cooperating therewith to define two side gutters and a central gutter, each socket beingprovided with a terminal connection extending into a side gutter, and each -socket of the Y two last mentioned row's beingprovided also ,1213

with a terminal connection extending into the central gutter, the terminal connections in the side guttersbeing-conuected to one set f of circuits and those in. the central guttet 'bel 4ing connected to the other set o fucircuits. 125 load' :ircuits, and the other of the terminals 8. A metering panel board having'. in coma bination, an lnsulatin sockets mounted directly over said bus bar; each socket having one terminal electrically connected to said bar, a row of fuse plug.

sockets mounted onsaid board independent of a bus bar and parallel to saidv rst mentioned row to -form a gutter with the latter, each socket having a terminal connection eX- tending into Asaid gutter and each socket of said last mentioned row having alsol a ter-v minal connection extending laterally atx its l0 GUSTAVEW. BERTHOLD. 

